Abstract: A system and method of customized routing in the interconnection of multiple public switched telecommunications networks for both unbundled switching and for resale. The arrangement utilizes a hybrid combination of an Advanced Intelligent Network (AIN), line class codes (LCC), and an adjunct processor to provide customized routing for both unbundled switching and for resale while coping with the varied capabilities and capacities of the switches found in the average public switched telephone network. The primary applications are for unbundlers and resellers to have operator (0+, 0−) calls and directory assistance calls (411/555) routed to their own platforms. The arrangement provides a solution to achievement of relatively rapid implementation in an efficient and economical manner with a minimum of modification to existing plant.

Abstract: A local exchange carrier can provide operator service for a telephone call, whether intra-LATA or not, and in some cases to perform the service so that the call can be passed with the service already provided. Operator services for calls that require prior approval at a subscriber station for completion and those that do not (e.g., collect calls vs. credit card calls) are differentiated. If, for a particular call, it is determined that the required operator service does not require prior approval for the call being placed, then the operator service is provided from the end-office without routing the call to an operator services platform. The call may be serviced using an advanced intelligent network (AIN) system. If the required operator service does require prior approval, however, it is ultimately routed to an operator services platform of the local exchange carrier or interexchange carrier for provision of the service.

Abstract: A method and system for providing operator services to an interexchange carrier for completing a long distance telephone call for which an operator service is indicated. The interexchange carrier call requiring operator services is connected from the interexchange carrier (IXW) network to a point-of-presence (POP) of the interexchange carrier within a local access transport area (LATA). From the POP the call is connected to an operator service system (OSS) external to the IXC network and within the LATA. The OSS completes the call in accordance with a request for service from the caller. An SS7 signaling system is used to route calls from a terminating switch in the interexchange carrier network to an end office, so that the call legs of the operator service system can be switched out of the call path.